Rotating cutting element

Abstract

Rotating cutting element (1) having a row of cutters (5) placed in recesses at the circumference of a disc. Each recess has radially extending V-shaped front and rear edges (4,3), each cutter (5) has V-shaped front and rear edges (6,7) with the apexes facing away from each other. Each cutter (5) is held in the recess against an abutment (9) by means of a wedge (10) which is tensioned by means of a screw (15).

I claim: 
     
       1. A rotating cutting element with a row of cutters which are fastened detachably in the peripheral direction at regular intervals from each other in recesses in the periphery of a carrier by means of a wedge, where each cutter has a profiled rectilinear front edge which fits into a complementarily shaped edge of the recess of the carrier, also a rectilinear profiled rear edge which fits into the complementarily profiled front edge of the wedge, said wedge having a rectilinear profiled rear edge which mates with the complementarily profiled rear edge of the recess, and where the front edge and rear edge of each cutter form an angle with each other which opens in the direction of the carrier, and each recess has a flat internal face which serves as a stop surface for the flat internal face of the cutter, which flat faces have surface contact, characterized in that the profiled edges of each cutter and wedge are V-shaped, with the apexes of the V-faces of the cutter facing away from each other and the apexes of the V-faces of the wedge facing towards each other, and with the wedge fixed to the carrier by means of a screw. 
     
     
       2. The cutting element according to claim 1, characterized in that the rear edge of the cutter is parallel to the radius of the carrier.